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lukranit [14]
4 years ago
11

∠1 and ​ ∠2 ​ are a linear pair, and ​ ∠2 ​ and ​ ∠3 ​ are vertical angles. m∠1=(3y+10)∘ and ​ m∠3=(5y−30)∘ .

Mathematics
2 answers:
Art [367]4 years ago
8 0
D) 95°
y = 25
5(25) - 30 = 95°
Ivan4 years ago
6 0
<span>∠1 and ​ ∠2 ​ are a linear pair
<1 + <2 = 180
</span>3y+10 + <span>5y−30 = 180
8y - 20 = 180
8y = 200
y = 25

<2 = <3 = </span><span>5(25)−30 = 125 - 30 = 95

answer
</span><span>95°</span>
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